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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/sh/boards/board-apsh4a3a.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sh/boards/board-apsh4a3a.c')
-rw-r--r--arch/sh/boards/board-apsh4a3a.c182
1 files changed, 182 insertions, 0 deletions
diff --git a/arch/sh/boards/board-apsh4a3a.c b/arch/sh/boards/board-apsh4a3a.c
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+++ b/arch/sh/boards/board-apsh4a3a.c
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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ALPHAPROJECT AP-SH4A-3A Support.
+ *
+ * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
+ * Copyright (C) 2008 Yoshihiro Shimoda
+ * Copyright (C) 2009 Paul Mundt
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/mtd/physmap.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+#include <linux/smsc911x.h>
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <asm/machvec.h>
+#include <linux/sizes.h>
+#include <asm/clock.h>
+
+static struct mtd_partition nor_flash_partitions[] = {
+ {
+ .name = "loader",
+ .offset = 0x00000000,
+ .size = 512 * 1024,
+ },
+ {
+ .name = "bootenv",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 512 * 1024,
+ },
+ {
+ .name = "kernel",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 4 * 1024 * 1024,
+ },
+ {
+ .name = "data",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static struct physmap_flash_data nor_flash_data = {
+ .width = 4,
+ .parts = nor_flash_partitions,
+ .nr_parts = ARRAY_SIZE(nor_flash_partitions),
+};
+
+static struct resource nor_flash_resources[] = {
+ [0] = {
+ .start = 0x00000000,
+ .end = 0x01000000 - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device nor_flash_device = {
+ .name = "physmap-flash",
+ .dev = {
+ .platform_data = &nor_flash_data,
+ },
+ .num_resources = ARRAY_SIZE(nor_flash_resources),
+ .resource = nor_flash_resources,
+};
+
+/* Dummy supplies, where voltage doesn't matter */
+static struct regulator_consumer_supply dummy_supplies[] = {
+ REGULATOR_SUPPLY("vddvario", "smsc911x"),
+ REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+};
+
+static struct resource smsc911x_resources[] = {
+ [0] = {
+ .name = "smsc911x-memory",
+ .start = 0xA4000000,
+ .end = 0xA4000000 + SZ_256 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .name = "smsc911x-irq",
+ .start = evt2irq(0x200),
+ .end = evt2irq(0x200),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct smsc911x_platform_config smsc911x_config = {
+ .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+ .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+ .flags = SMSC911X_USE_16BIT,
+ .phy_interface = PHY_INTERFACE_MODE_MII,
+};
+
+static struct platform_device smsc911x_device = {
+ .name = "smsc911x",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(smsc911x_resources),
+ .resource = smsc911x_resources,
+ .dev = {
+ .platform_data = &smsc911x_config,
+ },
+};
+
+static struct platform_device *apsh4a3a_devices[] __initdata = {
+ &nor_flash_device,
+ &smsc911x_device,
+};
+
+static int __init apsh4a3a_devices_setup(void)
+{
+ regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
+
+ return platform_add_devices(apsh4a3a_devices,
+ ARRAY_SIZE(apsh4a3a_devices));
+}
+device_initcall(apsh4a3a_devices_setup);
+
+static int apsh4a3a_clk_init(void)
+{
+ struct clk *clk;
+ int ret;
+
+ clk = clk_get(NULL, "extal");
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+ ret = clk_set_rate(clk, 33333000);
+ clk_put(clk);
+
+ return ret;
+}
+
+/* Initialize the board */
+static void __init apsh4a3a_setup(char **cmdline_p)
+{
+ printk(KERN_INFO "Alpha Project AP-SH4A-3A support:\n");
+}
+
+static void __init apsh4a3a_init_irq(void)
+{
+ plat_irq_setup_pins(IRQ_MODE_IRQ7654);
+}
+
+/* Return the board specific boot mode pin configuration */
+static int apsh4a3a_mode_pins(void)
+{
+ int value = 0;
+
+ /* These are the factory default settings of SW1 and SW2.
+ * If you change these dip switches then you will need to
+ * adjust the values below as well.
+ */
+ value &= ~MODE_PIN0; /* Clock Mode 16 */
+ value &= ~MODE_PIN1;
+ value &= ~MODE_PIN2;
+ value &= ~MODE_PIN3;
+ value |= MODE_PIN4;
+ value &= ~MODE_PIN5; /* 16-bit Area0 bus width */
+ value |= MODE_PIN6; /* Area 0 SRAM interface */
+ value |= MODE_PIN7;
+ value |= MODE_PIN8; /* Little Endian */
+ value |= MODE_PIN9; /* Master Mode */
+ value |= MODE_PIN10; /* Crystal resonator */
+ value |= MODE_PIN11; /* Display Unit */
+ value |= MODE_PIN12;
+ value &= ~MODE_PIN13; /* 29-bit address mode */
+ value |= MODE_PIN14; /* No PLL step-up */
+
+ return value;
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_apsh4a3a __initmv = {
+ .mv_name = "AP-SH4A-3A",
+ .mv_setup = apsh4a3a_setup,
+ .mv_clk_init = apsh4a3a_clk_init,
+ .mv_init_irq = apsh4a3a_init_irq,
+ .mv_mode_pins = apsh4a3a_mode_pins,
+};